Find the missing term: 100, 81, 64, 49, ? MCQ with Answer and Explanation

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Find the missing term: 100, 81, 64, 49, ?

A. 25

B. 32

C. 36

D. 35

Answer: Option C

Solution (By JKSSB Mock Tests)

The terms are decreasing squares: 10²=100, 9²=81, 8²=64, 7²=49, so next is 6²=36.

This question belongs to: Reasoning Mental Reasoning

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Question #1

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Statements: All roses are flowers. Some flowers fade quickly. Conclusions: I. Some roses fade quickly. II. All flowers are roses. III. Some flowers are roses. Which conclusion follows?

A. Only III

B. Only I

C. Only II

D. None

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Correct Answer: Option A

Explanation:
Since all roses are flowers, some flowers are roses follows. We cannot infer that roses are among the flowers that fade quickly.

This question belongs to: Reasoning Mental Reasoning

Question #2

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Find the missing term: 2, 12, 30, 56, ?

A. 88

B. 80

C. 90

D. 84

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Correct Answer: Option C

Explanation:
The terms follow n²+n for odd n? Check: 1²+1=2, 3²+3=12, 5²+5=30, 7²+7=56, so next is 9²+9=90.

This question belongs to: Reasoning Mental Reasoning

Question #3

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Find the missing term: 5, 25, 125, 625, ?

A. 3120

B. 2500

C. 3125

D. 3000

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Correct Answer: Option C

Explanation:
Each term is multiplied by 5: 5×5=25, 25×5=125, 125×5=625, so 625×5=3125.

This question belongs to: Reasoning Mental Reasoning

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